Prosthesis for repairing a hernia defect

Patent metadata

Field	Value
Publication number	US-10335258-B2
Application number	US-201615389943-A
Country	US
Kind code	B2
Filing date	Dec 23, 2016
Priority date	Dec 28, 2015
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

A prosthesis for repairing a hernia defect includes a patch body, a hoisting frame releasably attachable to the patch body, and a tether attached to the hoisting frame with a free end extendable through the thickness of the patch body and accessible from the side of the patch body opposite to where the hoisting frame is releasably attached. The patch body and/or the hoisting frame includes a self-expanding support member. The hoisting frame includes a frame body with an outer frame component and a force translation component for directing pulling forces on the tether across the frame body. The outer frame component has a loop configuration to generally follow the patch periphery with overlapping end portions or a gap between free ends thereof. The force translation component is separable into multiple segments to facilitate withdrawal of the hoisting frame through an opening when released from the patch.

First claim

What is claimed is:

1. A prosthesis for repairing a hernia defect, the prosthesis comprising:
a patch body having a periphery, a first axis and a second axis perpendicular to the first axis, the first axis and the second axis intersecting at approximately a center of the patch body, a first portion of the patch body on a first side of the first axis and a second portion of the patch body on a second side of the first axis;
a self-expanding hoisting frame releasably attachable to the patch body to assist in spreading the patch body from a reduced configuration to an expanded configuration, the self-expanding hoisting frame including an outer frame component and an inner frame component configured to translate force, the outer frame component defining an open interior and the inner frame component extending through the open interior; and
a tether attached to the inner frame component, a free end of the tether extendable away from the inner frame component and through the patch body when the self-expanding hoisting frame is releasably attached to the patch body, a pulling force on the free end of the tether in an outward direction away from the patch body being directed by the inner frame component in a direction toward the outer frame component when the patch body is in the expanded configuration;
wherein the patch body and the self-expanding hoisting frame when releasably attached to the patch body are manipulable into the reduced configuration for insertion through an opening into a patient; and
wherein the inner frame component is configured to be separated into a plurality of segments to facilitate withdrawal of the self-expanding hoisting frame through the opening when the self-expanding hoisting frame is released from the patch body.

2. The prosthesis according to claim 1 , wherein the outer frame component is self-expanding.

3. The prosthesis according to claim 2 , wherein the inner frame component is non-self-expanding.

4. The prosthesis according to claim 2 , wherein the outer frame component includes a self-expanding support.

5. The prosthesis according to claim 1 , wherein the outer frame component has a configuration that generally follows the periphery of the patch body.

6. The prosthesis according to claim 5 , wherein the outer frame component is spaced inwardly of the periphery of the patch body.

7. The prosthesis according to claim 1 , wherein the self-expanding hoisting frame has a first axis and a second axis perpendicular to the first axis, the first and second axes of the self-expanding hoisting frame intersecting at approximately a center thereof, the inner frame component including a central portion located at the center of the self-expanding hoisting frame, the central portion configured to be separated into the plurality of segments to facilitate withdrawal of the self-expanding hoisting frame.

8. The prosthesis according to claim 7 , wherein the inner frame component includes a plurality of arms coupled at the central portion and extending from the central portion to the outer frame component, separation of the central portion causes at least two of the arms to separate from each other to facilitate withdrawal of the hoisting frame.

9. The prosthesis according to claim 8 , wherein each of the plurality of arms includes a free end coupled together at the central portion.

10. The prosthesis according to claim 9 , wherein the free ends of the plurality of arms are coupled together with the tether.

11. The prosthesis according to claim 8 , wherein the central portion is configured to be separated in a direction along the second axis of the self-expanding hoisting frame.

12. The prosthesis according to claim 8 , wherein the central portion includes a separation region extending in the direction along the second axis.

13. The prosthesis according to claim 8 , wherein the self-expanding hoisting frame is configured to be manipulated into a generally elongated configuration following separation of the central portion.

Assignees

• Bard Inc C R

Inventors

• Felix Augustus
• Hamilton Jason
• Conidi John
• Rothberg Matthew
• Ziniti Donald E

Classifications

• A61F2230/0058

  X-shaped · CPC title

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title

• A61F2230/0039

  H-shaped · CPC title

• A61F2210/0004

  bioabsorbable · CPC title

• A61F2230/0008

  elliptical or oval · CPC title